Recommended Practice

Solid-State Auxiliary Power Unit Periodic Inspection and Maintenance

Abstract

This Recommended Practice provides guidance for the periodic inspection and maintenance of solid-state auxiliary power units (APUs) mounted on rail transit vehicles. It provides a set of useful practices that can be selected and applied during the inspection and maintenance process as the particular design warrants.

Document History
Document Number Version Publication Date Publication Related Information
APTA RT-VIM-RP-016-03 Rev. 1 01/06/2015 Published Current

Keywords

rail transit vehicles, periodic inspection and maintenance

Summary

The auxiliary power unit is a solid-state device that conditions primary vehicle power and supplies power to the auxiliary loads. This Recommended Practice provides guidance for the periodic inspection and maintenance of solid-state APUs mounted on rail transit vehicles. Individual rail transit systems should tailor these recommendations to accommodate their specific equipment and mode of operation.

​Get Involved

Want to participate in the development of this document? Join the Working Group or Learn More

Related Documents

​ ​​

Print Friendly, PDF & Email